单项选择题
When was your ship built? （）is a new oneShe was delivered to us by Bremen Shipyard only three months ago.
A.Ours B.Ours ship C.Our’s ship D.Our’s
单项选择题 Every precaution must be taken to avoid （）.
单项选择题 It is obvious that the expansion of the water （）the increase of its temperature.
单项选择题 An engineer, together with some motormen （）to help in the repair work.
